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From Nitin Pawar <nitinpawar...@gmail.com>
Subject Re: Hive: Centralized HDFS Caching
Date Fri, 01 Aug 2014 10:46:16 GMT
Please take a look at hive with tez as execution engine on hadoop 2.3.

it may help you compare it with what you want to achieve


On Fri, Aug 1, 2014 at 4:13 PM, Uli Bethke <uli.bethke@sonra.io> wrote:

>   Hi.
>
>  in Hive can I make use of the centralized cache management introduced in
> Hadoop 2.3 (
> http://hadoop.apache.org/docs/r2.3.0/hadoop-project-dist/hadoop-hdfs/CentralizedCacheManagement.html)?
> If not implemented yet, is this on the roadmap?
>
>  My use case is that I want to pin a fact table that needs to be queried
> frequently into memory.
>
>  Impala already supports this as per the Cloudera documentation
> http://www.cloudera.com/content/cloudera-content/cloudera-docs/Impala/latest/Installing-and-Using-Impala/ciiu_perf_hdfs_caching.html
>
>  Thanks
>  uli
>



-- 
Nitin Pawar

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